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faltersainse [42]
3 years ago
12

In the vertical columns of the periodic table, as the atomic numbers increase:

Chemistry
2 answers:
kolezko [41]3 years ago
5 0
A.) The number of electron shells increases.
Fiesta28 [93]3 years ago
5 0

Answer: a. the number of electron shells increases.

Explanation:

The elements in the vertical columns also called as groups are arranged in order of increasing atomic numbers and contain same valence electrons.

The electrons are added to new energy shells and the nuclear charge also increases due to increase in atomic number. But the effect of addition of new shells is more dominant.

As the shells increase, the atomic size increases and the valence shell moves farther from the nucleus , thus the tendency to lose electrons increase and thus the ionization energy which is the energy required to move the valence electron, decreases.

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I cant see it

Explanation:

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2 years ago
Can you pls tell me the net ironic equation of H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq)+SO²⁻₄(aq) + H₂O(l)
almond37 [142]

Answer:

H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)

Explanation:

H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq) + SO²⁻₄(aq) + H₂O(l)

A careful observation of the equation above, shows that the equation is already balanced.

To obtain the net ionic equation, we simply cancel Mg²⁺ from both side of the equation as shown below:

H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)

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3 years ago
Why is earth's surface warmer in the northern hemisphere when it is summer there
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2 bromocyclopentanamine structural formula
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Answer:

The structure is given in attached file.

Explanation:

Explanation

2-bromocyclopentamine (Figure attached) is a synthetic compound which is synthesized by substitution reaction of cyclopentamine and hydrobromide. Its molecular formula and molecular mass are C5H10NBr and 164.05 mol/g respectively.  It is a very reactive compound so it doesn’t available in pure form, it is present in market as a mixture of 2-bromocyclopentamine and Hydrobromide.

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Its boiling point is 115 0C

Its melting point is – 75 oC

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The five steps involved in the process of natural selection are

Variation • Inheritance • Selection • Time • Adaptation

☆anvipatel77☆

•Expert•

Brainly Community Contributor

5 0
2 years ago
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